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2 Sheets-Sheet 1.

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Patented Jan. 8, 1893.

v(No ModeL) 0. DALISGH.

VELOGIPEDE.

2 Sheets-Sheet.Y 2.

(No Model.)

O. DALISCH.

VBLOGIPBDB.

\ :l \\\\\\\-\\\l-r r f/.//// Rut UNITED STATES PATENT OFFICE.

OSCAR DALISCH, OF NEISSE, GERMANY.

VELOCIPEDE.

SPECIFICATION forming part of Letters Patent No. 488,988, dated January3, 1893. Application tiled November 10,1891. Serial No. 411,430. I(Nomodel.)

To all whom it may concern..-

Be it known that I, OSCAR DALISCH, a citi-.

`zenfof the Kingdom of Prussia, residing at Neisse,intheProvince ofSilesiaand Empire of Germany, have invented certain new and `usefulImprovements in Veloci pedes, of which means consist of a reservoircontaining com-l pressed air, liquid carbonic acid or asimilar materialwhich is allowed to act upon the driving shaft .and which is controlled-by the pecnliarlmechanism hereinafter specified.

I In the accompanying drawings Figure'l is an elevation of a veloci pedeprovided with my improvement. Fig. 2 a rear view thereof. Fig. 3 alongitudinal section through the, cylinder. Figs. 4 and 5 are similarsections with the cut off in diierent positions. Fig. 5 a diagramshowing the reversal of motion and Fig. 6 a section through the pistonshowing the cut 0E mechanism. Figs. 4 6, are drawn on a larger scalethan the remaining figures.

The letter a, represents a suitable reservoiror tank secured tothe frameof a velocipede preferably between its driving wheels. This reservoir isadapted for the reception of compressed air, steam or liquid carbonioacid` and is connected to a cylinder b, by means of the inlet pipe Z.pulley c, which by means of chain c', revolves pulley d, fast on drivingaxle d. Within the pipe Z, there is a throttle 'valve which can be`operated by Ameans of rod e. This pipe may also be' provided with apressure reduction valve or with an expansion chamber, .to convey thecompressed air &c. under the proper tension and condition into thecylinder.

m, m', are the valve boxes, containing the inlet spring valves fn, n.The piston rod b', is tubular and is set into a socket of the pistou b2.Through the bore of the piston and the hollow piston rod there extends avalve rod '0,which is pivoted to a cross piece p, sliding in slots ofthe piston rod. The cross piece p,

'oted a forked lever r, connected to a lever s,

The piston rod b', revolves is held bya turnable sleeve q, to which ispivthat may be revolved on the connecting rod or pitman t. This rod iscoupled tothe crank u', of axle u, (Fig. 3).

The piston b2, is provided with the double valve e, which is adapted tobe opened or closed by coming into contact -with the-cylinder heads andwhich allows .the air in front of the piston to be exhausted through thebore e', and the hollow piston rod b. In the position shown in Fig. 3,the pin o', of valve 6o rod o, (which is'placed in alignment withthevalves fn, ln!) opens the valve fn, to admit the compressed air behindthe piston. The piston will now move forward and the pin Q will keep thevalve n., open fora short time r,by a differential movement of the rodo, in the piston rod. At the end of the strokethe valve v, will bereversed and the valve n. will be opened so that the return stroke ismade. By revolving the levers r, and s, one hundred and eighty degrees(Fig. 5) it is possible to give to the machine a reverse motion. Ifthese levers are revolved while the velocipede is driven, one ,of thevalves n, n', is opened prematurely and a contrary pressure will arisebefore the crank arrives at its dead point. This causes the piston tostop and go back so as to give to the machine the desired reversemovement.

What I claim is:

1. The combination of reservoira with cylinder b, inlet valves ln, fn',piston having valve "v, hollow piston rod and with valve rod o havingpin'o, substantially as speci tied.

2. The combination of reservoir a with cyl- 85 Signed at Breslau, in theProvince of Silesia 9o and Kingdom of Prussia, Empire of Germany, this22d day of October, 1891.

OSCAR DALISCH. Witnesses:

Josor Dorn'rr, Ro ScHoLz.

